I don't see either hitting those targets. But 3DS is more likely to reach 18 million. Anyway I predicted 7 million for Vita and 17 million for 3DS, which is actually close to what the OP predicts
Xbox Series, PS5 and Switch (+ Many Retro Consoles)
'When the people are being beaten with a stick, they are not much happier if it is called the people's stick'- Mikhail Bakunin
Prediction: Switch 2 will outsell the PS5 by 2030







